HuanX35 Assorted Color Coded Key Id Label Tags Split Ring Keyring Keychain Key Tag with Label Window (Style 1# 5PCS) MATERIAL-Transparent hard PE(Poly Styrene) case,paper ID card and metal keychain. PARAMETERS-Plastic case size(L*W*H):2"*0.8"*0.1".The diameter of keyring:0.78".Total weight:2.7g. COLORS-5 colors(Yellow, White, Blue, Green, Red),1pc for each color. FEATURES:Moistureproof and dustproof for unibody design case,see-through from both sides. APPLICATION:Hotel rooms numbering,public lockers identifying,luggage recognition,pets naming,etc.