Horsemen"s Pride 3 Step Mounting Blocks Made of heavy duty polyethylene, this 3 step Mounting Block is ideal for stable or show use. The substantial base provides additional strength and stability, with ample room for comfortable footing with a 10 inch deep step area. A built-in handle allows for easy lifting. Holds up to 300 lbs. 30" deep x 19" W x 21" H