Description Are you looking for a professional, yet affordable laboratory flask ring? If yes, look no further! Adoption of premium material, sturdy and for long-term use. Our multi-functional flask ring is your nice choice, suitable for laboratory and school, not easy to break and wear. Features - Color: Random color. - Material: Iron, plastic. - Size: 8.50X8.50X2.00cm/3.34X3.34X0.79inch. - Adopted by high grade material, sturdy and for long-lasting use. - The product can effectively play the role of the Erlenmeyer flask counterweight. - It is simple in design, but very practical in use, which brings great convenience to you. - Cost-effective, you can buy this practical product at an . - Fine workmanship and creative appearance ensure its popularity and practicality. Adopted by high grade material, sturdy and for long-lasting use. The product can effectively play the role of the Erlenmeyer flask counterweight. It is simple in design, but very practical in use, which brings great convenience to you. Cost-effective, you can buy this practical product at an . Fine workmanship and creative appearance ensure its popularity and practicality.