Please note: If the height of the deep refrigerator shelf is less than 33cm or more than 44cm, it cannot be installed.The thickness of the shelves must be less than 1.5 cm.It fits most standard size refrigerators. SAFE: Food grade PET plastic, BPA free.strong and robust.The simple design makes food visible and easy to find. Telescopic: Rail lengths between 33 and 44 cm.The smooth sliding design ensures the drawer is easy to open and close.Fits most standard size refrigerator shelves.Please measure the shelf dimensions for correct assembly.No tools are required and installation takes place in seconds. Space Saving: Perfect for organizing spices, vegetables, meat, deli, cheese, snacks, frozen vegetables and other foods in the refrigerator, freezer and wasted space under kitchen cabinets and maximizing pantry storage space.Space to organize and store food right at your fingertips. Note: 1. Due to differences between different monitors, the picture may not reflect the actual color of the item.2. Due to manual measurement, there may be 1-2mm error.​