The new Duncan Rapid Ball is a fun new counterweight design from Duncan. It is a textured round plastic ball with a string groove around the outside and a hole through the middle. Attach the string by securing it around the string groove or looping it through the hole like a traditional counterweight.
The new Duncan Double Dice is an innovative take on 5A play. It is a two piece counterweight with one smaller cube fitting inside the larger dice shell. The smaller piece is free moving and can slide along the string independently to add a creative new element to your 5A tricks.