◎ 31 Plastic Bottle Caps I've collected ones that I personally think are cute. They have been soaked in dish soap, washed, and air-dried. I've checked each one for dirt, but please understand that there may be some overlooked. How about using them as materials for science projects, crafts, handicrafts, or handmade items?? ■ Packaging I will use clear bags and brown envelopes that I have at home. ■ Shipping I will take waterproof measures and ship via Yu-Packet Post with simple packaging. Please purchase with the understanding that these are stored at home. Thank you for looking.