Soft Touch Bases 15" Turf Bases (3) These bases are designed for use on synthetic playing fields with a turf depth of 1”. This unique design requires no mounting system and sits securely on the synthetic turf. Easy to install, Soft Touch® for Turf bases can remain in-ground year round or set up specifically for game-time. Not for use on carpet style turf. Dimensions: 15 x 15 x 2.5. Made in the USA