What board do you think rides best on the 3 inch ball? I\'m thinking about grabbing an extra Si-Board for my standing desk at work.

The Turbo Starter is the best on the 3" ball or even the Phil Rajzman. You want something small compared to the ball that won't ground out quickly. Both boards are small so they store nicely and aren't big enough to keep bashing into things.  The Turbo will ride very level and steady.  The Phil has the rail close to the ends so it tilts more and is more exciting on the edge as you get close with the ball. The Phil board is more responsive.   We also have a new board called the Vortex.  It is pressed maple ply with our Skate rail. It is designed for fast agility of the feet and is close to near impossible to stay steady for a long time unless you have strong endurance in your feet. The rail is narrow so it constantly hits the front and back and jars you, forcing you to have better foot control and hip control.  We don't have it on the website yet due to the website being migrated to a new platform. This might be a little too distracting at work unless you are on the half ball.   I would go with either the Turbo Starter or the Phil board.  The Phil will give you more side to side motion than the Turbo though.  Plus this ball on the new 5" ball you have, and on a hard surface like concrete or gym floor- it is absolute magic!

Now about the size of the balls: what do you mean when you say the 3\" mini and 5\" small ball? My reference is as follows\" golf ball is about 3\", baseball are 9\" and softballs are 12\". Is your 3\" equal to a golf ball, and is your 5\" smaller than a baseball?

Our sizes are in diameter.  The 3" mini is the size of a baseball.  The 5" is the size of a grapefruit. Slightly larger than a softball.  Perhaps the dimensions you have are for circumference.  

Hi, I\'m looking at your website, searching for a rope ball for my high school and travel softball teams. I\'ve seen your videos and like the idea of small and medium balls for conditioning and core development. I have questions about the 3\" mini balls. 1st - is there a difference between the colors? 2nd - 2 pack different from ordering individually? 3rd - how much do these rebound? Can they be used for wall drills to work on fielding skills. 4th - How do you recommend using them?

1. There is no difference between colors, although the lighter colors do get dirty compared to black   2. There is no difference in ordering the pack vs individual   3. They rebound 70% from a still drop.  If you were to throw them down they will rebound 200%. They are like the giant super bouncy ball or similar to a lacrosse ball that rebounds high.  They are amazing for wall drills, pop fly and grounders and for throwing against multiple corners. They keep bouncing and going- really amazing.   4. I have worked with professional baseball players, and a pitcher. What I have experienced with the coach is they can tap it lightly with a bat and it picks up a lot of energy and they don't have to hit the ball as hard for field drills- it helped save the coaches arm.   For players I suggest two balls- one in each hand close to the wall doing small tosses for hand eye coordination and moving in a pattern for shoulder awareness.  Then back away from the wall 5 feet and toss and catch, then do both at the same time and see if you can catch a ball in each hand at the same time.   A super fun drill is to throw one ball in quick sequence while you catch the other one- this is from 15 feet away with a target on the wall. You have to have precision and a quick glove to hand transfer.   Throw on the ground close to the corner for a pop fly. Throw to the wall close to the ground corner for grounders.  These balls come at you very fast.  Throw at an angle to work on side agility shuffling for grounders.   I like the pitcher catcher drill where you throw standing behind the catcher and the catcher has to pop up and throw hard down the line.  What's also nice about the fast rebound is you don't need a lot of force, so you can avoid overtiring the arm and shoulder.   Then we always cool down by rolling on the balls either on your back or against the wall. It is great for trigger points and between the shoulder blades as you raise your arm up and down against the wall.   I hope that helps. These balls are very versatile and so fun, almost addicting because of the bounce. And players get very competitive with each other in drills or they can work solo on their accuracy.   The 5" ball is great for one hand rotation training and learning how to rotate in your non dominant side. This is important of injury prevention of constantly moving in the same pattern. Learning how to initiate your hips to generate force through the trunk and out through the hand is easy with this size. It's also great for an eccentric rehab drill to train the posterior shoulder. Stand behind the player as they kneel, throw the ball into their hand in the cocking phase and they will catch it and slow it down to the release phase. It is a slowing motion of the throw mechanic but with the force coming from behind.