The A4 - Fitness Anchor is built from heavy gauge steel and a 5/8" solid steel hoop that is the perfect size for ropes up to 2.3" diameter. The hoop provides plenty of space for heavy 2" ropes and protective jackets yet is sized to keep the rope tight and secure for a more intense workout. The A4 anchor is perfect for attaching training systems, exercise bands and other training equipment. Supplied with 4 wood lag bolts (3/8 x 2.5) and washers. For mounting to concrete, brick or cinder block make sure to purchase the correct style of anchor bolt, four 3/8" anchors needed (Not Supplied). Your order includes: the A4 Anchor, 4 wood lag bolts, 4 washers and instructions.