Additional replacement male cap inserts available in packs of four. The different colours are to easily idenitfy the different retentive values.
Yellow 0 lbs
Red 0.5 lbs, extra light angled
Blue 1.2 lbs
Orange 1.5 lbs, light angled
Pink 2.4 lbs
Green 3 lbs, angled (for labs)
White 4 lbs