Check the listing for details. Practicon 7019613 Small Compo-Cover. Condition: New. Listed at 19.99 USD. 1 New Practicon 7019613 Small Compo-Cover Product features Proven to prevent any hardening of light-sensitive set-ups for more than 30 minutes Ends the need to recap light-cured supplies in mid-procedure 7" L x 4-1/2" W x 1-1/2" H inside Turbocharge your cosmetic and ortho bonding procedures. This Compo-Cover is proven to prevent any hardening of light-sensitive set-ups for more than 30 minutes. Tested in a busy practice, it allows efficient pre-mixing and dispensing of light-cured resins, pre-application of light-cured cements to ortho brackets, veneers and more. Ends the need to recap light-cured supplies in mid-procedure. Sturdy acrylic construction blocks all ambient UV and blue light in the critical 400 to 500nm range and disinfects easily (alcohol-base not recommended). X-small Compo-Cover fits over mixing pads.