Chewer: Medium Chewy Charms Chewy Tubes are a fun, soft, spongy, textured tube. They are great to chew on, with the flexible shape making it very versatile. Nibble on the end, chomp on the middle, bend it around however you want. The tubes are made of a durable food grade silicone so they are safe to chew. They are bacteria resistant, BPA free, PVC free and Phthalate free. The tubes can be put into the fridge or freezer and are dishwasher safe. Size: 18cm long x 1.8cm diameter