Sippy straps fit all sippy cups with the adjustable and uniquely designed high quality plastic slide and release button that is BPA and Phthalate free . The strap securely holds onto your child’s sippy cup or bottle in place by using a non-slip grip material. The strap comes in modern designs and are made of an easy wipe, water resistant, 100% polyester fabric. The adjustable strap can clip onto any high chairs, strollers and/or car seats. Designed in Canada, made in China.