Installation Instructions not included Specifications: Material: Stainless Steel 304 Ball Cap Material: Brass Diameter: 6.4mm / (1/4in) Clamping Length: 40mm /(About 1.57in) Overall Size: 79mmx44.5mm/ 3.1inx1.75in (L*W) Package Content: 1 x T Handle Ball Locking Pin Installation Instructions: Press the button on the handle to retract the steel ball on the head of the pin body, then pass the quick-release pin through the... Specifications: Material: Stainless Steel 304 Ball Cap Material: Brass Diameter: 6., 4mm /(1/4in) Clamping Length: 40mm /(About 1., 57in) Overall Size: 79mmx44., 5mm/ 3., 1inx1., 75in(L*W) Package Content: 1 x T Handle Ball Locking Pin Installation Instructions: Press the button on the handle to retract the steel ball on the head of the pin body, then pass the quick-release pin through the pinhole. Uxcell T Handle Lock Pins, 10mm X 70mm Usage Length Stainless Steel Ball Lock Pin With Lanyard Uxcell T Handle Lock Pins, 13/64" Pin Dia. 25/32" Usage Length Stainless Steel Push-Button Quick Release Pin With Lanyard Cable (5mm-20mm Stainless Steel Quick Release Pin T Style handle quick-release pin is a kind of fastener connecting piece for quick locking, fastening, adjusting, and fixing Keehui T Handle Lock Pins Stainless Steel 304 Push-Button Quick Release Pin, Pin Dia 1/4in(6.4MM). Clamping Length 40mm(1.57in) With Lanyard Cable (2 Pin's material is stainless steel 304 , The ball cap is made of Brass. When the button is released, the steel ball pops out, the quick-release pin cannot be pulled out from the pinhole.