Made of chemical and temperature resistant plastic, able to withstand temperatures up to 80A°C Tapered clip, maximum diameter for joint is 10mm. Single joint clip. Joint clip color may vary Perfect for any science or home laboratory Single, 10/19 size joint clip. Chemical and temperature resistant plastic clips for holding jointed glassware together, thus reducing the need for clamping. Joint clip color may vary. Recommended maximum temperature limit in use, through the joint is 80A°C.