If your game is slow pitch softball, then your ball is the Thunder ZN Polycore Softball. Deliver your best game with the best ball in softball construction.
Center: Precision blended cross-linked polyurethane system
High density and maximum resiliency
Cover Material: Composite
Provides a nice feel and aesthetic appeal
12"
Designed for Slow Pitch
COR: 0.44
Compression: 375 lbs.
Email Sign Up
Stay Informed with the Latest News and Offers from Spalding
Bringing you everything you need for your best game.
Join MVP for exclusive perks and 25% off your first order.
The model number for portable systems will consist of two (2) sets of numbers that will need to be combined. Below are instructions on where to locate these numbers and how to combine them. If you are unable to locate this number, please contact our Customer Service Department.
Step 1: The first set of numbers will be a two (2) digit number located on the base. This two (2) digit number will be located near the fill hole where you put the water or sand.
Some System
There is a three (3) digit number on the front of the backboard, to the right of the rim. This set of numbers will identify your system. If you are unable to locate this number, please contact our Customer Service Department.
Step 2: The second set of numbers will be a three (3) digit number located on the front of your backboard, to the right of the rim.