The AXIO wall mount is designed to maximize limited wall space by holding up to any 2 AXIO Trainers. It is made of steel and has a protective vinyl coating. SPECIFICATIONS Dimensions: H 5.0 in, W 2.4 in, D 5.0 in Safe working load of 25 lb. Vinyl coating to protect AXIO Trainers Comes with mounting hardware including premium drywall anchors Screw Size (1-1/2in x 1/6in Dia) Drywall Anchor Size (1-5/8in x 5/8in Dia) Recommended Pilot Hole Size (0.314in)