HOSTK Two minute teeth brushing sand timer - pack of 14 (random colour in: yellow, green, blue, pink, purple, red, or orange). • The sand timer is not a timing device, please allow time deviations • Inner is glass and outer is PVC, which makes that it wont hurt kids even breaks • A smiling face on each base makes user have a good mood and attitude for the new day. Made of durable PVC, high quality borosilicate glass, non-toxic sand and protective cover. Not easy to be broken, very safe for kids to use. These timers are also waterproof, perfect sand timers for kids or as kids teeth brushing timer. It will not break under normal usage conditions.