Wool Defenser-1 was owned by Doug (Purple) from Team Spin Shepards.
This blade base was never released officially and is an anime exclusive.
(You will need to buy adhesive wool and attach it to the outside ring in order to give this Beyblade its anime 'Wool' mod.)
Adhesive Wool can be purchased here:
#501 White Wool Adhesive Orthopedic Felt Roll 1/8"x6-1/2"x1Yd Medical Grade #325 | eBay