A quick look at the Duncan Toys 2013 Wholesale Catalog shows a new product that is definitely geared more towards yoyo players than the mass market…plastic and aluminum weight rings. The rings are designed to snap-fit into any yoyo that uses FH Zero caps…such as the Hayabusa, Hornet, Raptor, Flipside and more! Available in Spring 2013, these are expected to retail for around $5 per set for the plastic weights and $10 per set for the aluminum weights. The exact weight of the rings is not settled yet, as Duncan is still finalizing prototypes.