[HIGH QUALITY]It is made of high-quality hard plastic, simple and firm in structure, unbreakable and safe to use. [PRACTICAL]With smooth , it is easy to clean, reusable, long-lived and practical. [CONVENIEN]The material is stable, , practical, and easy to store. [SIZE]Spot Plates measures 4.72 inch L x 3.74 inch W x 0.394 inch H,12 , each measuring approximately 1 inch Name:Spot Plates Usage:It is applicable to all kinds of common laboratory operations and classrooms Colour:White Material:plastic Package Contents: 12 * Polypropylene Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.