10pcs/Set RISK Bike Bicycle Bleed Nipple Screw Cap Dust Cover Hydraulic Disc Brake Bleeder Rubber Caps Specification: Main material: silica gel Product color: Black /Red /Green (luminous) Product size: about 19x6.5x4mm/0.75x0.25x0.15in Net weight: about 1.7g Note: Luminous green is passive luminous absorption light, and the luminous brightness is related to the light intensity.  Luminous version, green color only. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement.  

10 X Bicycle Bleed Cover Caps