Product Introduction: You will receive 3 pieces to meet your daily needs Waterproof: Waterproof to retain contents and keep them dry; airtight and floats Notes and dimensions: The box will be tight when you first open it; it can be used normally after a few times, the dimensions of the box are approximately 12.1x 9.4 x 3.8cm Wide range of uses: The card holders are suitable for various conditions, such as tough and humid environments; these card holders can protect many small items, such as keys, ID cards, change, tissues, etc. Transparent material: Transparent material with neck lanyard or strap, easy to carry and find items, looks great Colour:Transparent Material:Plastic Size:12.1x9.4x3.8CM Package Contents: 1 set * waterproof mobile phone case (pack of 3) 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.