Features RUBBER MATERIAL: Made of durable rubber material, this hat is flexible, not easy to tear, strong for long term use. LEAKAGE PREVENTION: Provide close coordination to prevent vacuum leakage. Help you make accurate and stable work, improve work efficiency. 80PCS: 80 heat resistant rubber vacuum covers in 6 different specifications, use for different scenes. HIGH TEMPERATURE RESISTANT: Tolerate high temperatures between 352 and 410 degrees ℉, strong and stable for long term use. EASY CARRYING: With a storage box and being lightweight as well, this set of vacuum hat is easy to carry for convenient use. Specification: Item Type: Vacuum Hat Plug Assortment Kit Material: Rubber Color: Black  Package List:5 x Vacuum Hat 3/8in 20 x Vacuum Hat 3/16in 20 x Vacuum Hat 5/32in 20 x Vacuum Hat 7/32in 10 x Vacuum Hat 1/4in 5 x Vacuum Hat 5/16in 1 x Plastic Box   Package List 5 x Vacuum Hat 3/8in 20 x Vacuum Hat 3/16in 20 x Vacuum Hat 5/32in 20 x Vacuum Hat 7/32in 10 x Vacuum Hat 1/4in 5 x Vacuum Hat 5/16in 1 x Plastic Box