1.Comfortable to wear 2.Resistant to cold, heat-proof quality 3.More fresh and brighter underwater 4.Innocuous high-tech material, have no allergic phenomenon to the skin 5.Oem fracture, suitable for sales promotion and present! Caps information: 1. Material :100% silicone rubber , green material 2. Actuation force flexibility for the silicone swimming cap, ; 3.It can perform very well even under extremely high or low temperature. 4. Please avoid sharp object as fingemail or hairpin 5.Pinse in cold waterr and wipe dry with towel immediately after use 6.Odourless and non-toxic, washable, easy to clean with cleaner if dirty. Net weight:75g/pc Package:1pc/pvc bag, 150pcs/carton Carton size:45.6*22.5*29cm Carton n.W/g.W:11.5kg/13.5kg