The clips is made of plastic. It is 6.5 inches high and 2 inches width. The top holds the beach towel and the bottom is inserted into the beach. You can use it to fix the four corners of the beach towel. Use it to avoid the sea breeze blowing up the beach towel, let you lie on the beach towel to bathe in the sun, free from sea wind interference. It is popular in beach and outdoors. Welcome your logos and colors. It is a great item for promotional activities.