'K' Cam Cleats - MidiManufactured from a composite Kevlar/Zytal material. This advanced material offers performance advantages over carbon fiber and conventional glass-reinforced resins; 'K' cams are very strong, lightweight and have excellent wear-resistance. A progressive tooth design ensures maximum holding power on all types of line, whilst maintaining minimum wear to both cam and line.'K' Cam MidiMax Line Ø: 6-12mm (0.24" - 0.47")FasteningsØ: 5mm (0.20")Fastenings Center: 40mm (1.57")Holding Power: 230kg (507.06lbs)Weight: 34kg (75lbs)