Feature: REMINDS YOUR CHILD WITH A CUTE melody: Simply set the interval timer alarm for 30, 60 or 90 MINS to remind your child that it's potty timer. WATER-RESISTANT WEARABLE POTTY TRAINIGN WATCH: Life waterproof, they can wash their hands or play with water with its water resistant feature. LIGHTS AND MUSIC: LED Screen and 9 remind.Set 30 minutes/60 minutes/90minutes to remind kids go to potty. EASY TO USE AND RECHARGEABLE: Use USB charging function. MAKES TOILET TRAINING FUN and ENGAGING FOR KIDS: For toddlers and allows busy parents to remind kids regularly without losing track of time. Suitable for 18 months and above. Name: Silicone Strap size: 22.5 x 1.6 x 1.5 cm Material: Silica gel colour: Blue Package Contents: 1 x Silicone Strap 1 x Chinese and English instructions Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.