Product information: Applicable scenarios: fitness equipment, fitness body, sports trend Color: silver handle, black handle, red handle, blue handle Specification: aluminum alloy spring grip Material: aluminum alloy high strength spring steels Applicable object: Adult Product Material: Aluminum Handle, Alloy Spring Specifications: 100 pounds: 45KG 150 pounds: 68KG 200 pounds: 90KG 250 pounds: 114KG 300 pounds: 136KG 350 pounds: 160KG