• 【DEVELOP PROPER TECHNIQUE】The weighted training balls in different weights help form your muscle memory and ensure that you are building the proper follow-through on your hitting and pitching technique.
• 【INSTANT FEEDBACK】These weighted balls provide solid resistance and instant feedback for the batter, so they can get a better understanding of how the whole body reacts in their swing mechanics.
• 【WARM-UP TOOL】They are perfect for warm-up batting or throwing before the game when you can't use the entire field so you can get into the game in advance.
• 【DURABLE】Designed with thick and flexible plastic cover, these training balls are built to withstand years of hits and throws.

Shipping Note: Shipping to Alaska, Hawaii, P.O. Boxes, and APO addresses is not available for this item

Warranty: 90 Day Woot Limited Warranty