sc507103 10ml clear glass vials, stoppers and red flip off seals 20mm size: 20mm crimper, 10ml ... : different color for flip off seals 20mm. different color for stoppers 20mm. size: 20mm crimper, 10ml vials, 20mm rubber stopper, 20mm ... vials.3. custom logo on seals. 4. custom logo on stoppers. material: 20mm crimper made by stainless steel. 10ml vials made ...