Specifications: The bag is made of kraft material, which is durable and can protect your goods well. This shipping bag is very suitable for packing precise instrument, jewelry, accessories and fragile products. It has great self-sealing performance, which is easy to pack and transport. Item Name: Bubble Shipping Bags Quantity: 50Pcs Material: Kraft Paper Features: Thicken, Self-sealing, Durable Size Option: 11cm x 15cm/4.33" x 5.91" (Approx.) 12cm x 18cm/4.72" x 7.09" (Approx.) 13cm x 21cm/5.12" x 8.27" (Approx.) 15cm x 18cm/5.91" x 7.09" (Approx.) 15cm x 25cm/5.91" x 9.84" (Approx.) 16cm x 20cm/6.30" x 7.87" (Approx.) 18cm x 20cm/7.09" x 7.87" (Approx.) 20cm x 25cm/7.87" x 9.84" (Approx.) 25cm x 30cm/9.84" x 11.81" (Approx.) 29cm x 36cm/11.42" x 14.17" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 50 x Bubble Shipping Bags