Sturdy design fits almost all sink shapes size,wash or rinse fruits,vegetables,berries,herds,meats or other foods. The heat resistant, durable, lasting, FDA Food Grade Silicone strainers fold easily to save you much needed space in the kitchen. Must have in any kitchen. These food strainers are heat resistant.so even hot boiling water will not cause any damage. Heat also will not transfer so your hands will be safe. Specification: Big:11.5"x9.34"(29.3CMx23.8CM),weight:0.295LB(0.134KG) Small:9.6"x7.95"(24.6CMx20.2CM),weight:0.22LB(0.096KG) Note: 1.Please don't heat it on the flame directly. 2.Avoid Using Sharp Thorn, Cut Basket Surface. 3.Using Ordinary Detergent or Cleaner, Dishwasher Safe. 4.For the First Time in Boiling Water for 5 Minutes Before Use. Package List: 2x silicone colanders