Heavy Duty Vinyl Bases - Official 15" (SET)
OFFICIAL SIZE 15" x 15" Inverted sewn corner seams for extra durability and double-thick-top. These bases are covered with 100% nylon-impregnated vinyl covers which are both water and weather resistant. The new poly foam inner core allows for maximum shape retention and a great "soft-landing" cushion. Packed 3 bases with 6 spikes per set. Although this base is designed to reduce sliding injuries, it is not a substitute for using proper sliding techniques.
Heavy Duty Vinyl Bases - Official 15" (SET) Review
I have this standard bases for ages. I am still happy and I am using Heavy Duty Vinyl Bases - Official 15" (SET) almost every day. This Heavy Duty Vinyl Bases - Official 15" (SET) was reffered by my friend.