Foam Jerk/Pulling BlocksStackable Blocks are ideal for Olympic weightlifting. Stack for jerk drills or use them as deadlift or pulling blocks. Manufactured with a core from high density foam which absorbs impacts and covered in a durable heavy duty vinyl for significant wear and tear resistance, reinforced stitching, heavy duty zips. Stack the blocks together with Velcro. Prices per pair and include foam wedges. 15cm, 30cm or 45cm sets available Each block measures 75 x 50cm