Features: Precisely machined by aluminium-alloy, light in weight; Removable brass core for easy addition-of tubeless sealant. With side hole to minimize clogging. Trimmed nut & hex-hole for easy installation and extractions. Rubber spacers fit various rims seal, detachable for service. The cap also services-as tool to put on/off-nipple. Specifications: Material: Aluminum-Alloy Style: BK1 (1x Black Tubeless Valves)/-R1 (1x Red Tubeless Valves)/BL1 (1x Blue Tubeless Valves)/BK-2 (2x Black Tubeless Valve+2x Plastic Cap)/-R2 (2x Red Tubeless Valves+2x Plastic Cap)/BL2 (2x Blue Tubeless Valves+2x Plastic Cap)/BK3 (2x Black Tubeless Valves+2x Plastic Cap+Set FC-1)/-R3 (2x Red Tubeless Valve+2x Plastic Cap+Set FC-1)/BL3(2x Blue Tubeless Valves+2x Plastic Cap+Set FC-1) Size: As-Shown in the Picture Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: BK1 (1x Black Tubeless Valves)/ -R1 (1x Red Tubeless Valves)/ BL1 (1x Blue Tubeless Valves)/ BK-2 (2x Black Tubeless Valve+2x Plastic Cap)/ -R2 (2x Red Tubeless Valve+2x Plastic Cap)/ BL2 (2x Blue Tubeless Valve+2x Plastic Cap)/ BK3 (2x Black Tubeless Valve+2x Plastic Cap+Set FC-1)/ -R3 (2x Red Tubeless Valve+2x Plastic Cap+Set FC-1)/ BL3 (2x Blue Tubeless Valve+2x Plastic Cap+Set FC-1)