From the Maker:
• Reusable
• Dishwasher Safe
• Tested by NSF. Withstood 100 cycles of high-temp and low-temp industrial dishwashing with no visible defects, warping or cracking.
• Made from polypropylene for resistance to breakage
• 7 7/8in (20cm) length, designed for a collins glass
• Recyclable, 100% BPA Free