Round Bottom Flask Cork Support, Size #2, 110mm OD, Pack of 10 by GSC International Inc.

Secure multiple round bottom flasks with the GSC Size #2 Cork Support Ring, sold in a convenient pack of 10. Each cork ring measures 30mm tall with a 110mm outer diameter, featuring an inner hole of 60mm and outer hole of 90mm to stabilize flasks from 200ml to 500ml. Made from durable agglomerated cork, these rings protect lab surfaces from scratches and heat while keeping glassware steady during experiments. Ideal for chemistry labs, STEM classrooms, and educational demonstrations, this 10-pack ensures consistent, safe, and organized laboratory setups.

Key Features

• Pack of 10 cork supports, size #2
• 30mm tall × 110mm outer diameter
• Inner hole: 60mm; outer hole: 90mm
• Made from agglomerated cork
• Fits 200–500ml round bottom flasks