Secure sleeve and leg iron connection. Two slotted hex-head bolts with lock washers and barrel-type nuts join the steel sleeve and leg iron together. Steel split ring secures ankle strap in place and allows for quick replacement. 4-7/16 inch wide stirrup provides greater foot support. Adjustable climber length steel sleeve moves in 1/4 inch increments for the most comfortable fit. Contoured leg irons help position gaffs securely and comfortably. Gaffs are longer in length and wider in angle than 1-1/2 inch gaffs for exceptional resistance to cutouts. To determine size needed, measure from instep to 1 inch below knee.