Material: EVA foam Size: 30*30cm 11.81*11.81in Thickness: 1/2.5cm 0.39/0.98in Packing List: Interlocking Floor Mat * 8 Note: 1 The frame next to the fitness mat is randomly given away. Usually, we present a mat frame for each mat. have to be aware of is buying less than 16 pieces may cause insufficient edge strips due to assembly, this is normal, it is recommended to buy 16 pieces and above. 2 This product is produced by a machine. Due to different batches, there will be differences in the gears between mats purchased in different periods. This is a normal phenomenon. In order to avoid the mats purchased twice before and after cannot be completely spliced, it is recommended that you purchase the mats you need at one time total number of mats