I mainly used 100% cotton lace yarn to crochet and connect square motifs. They are sewn onto the mat purchased from Seria in photos 5 and 6. The back of the mat has a non-slip surface as shown in photo 2. It is approximately 34cm long and 56cm wide. This is the work of an amateur in handicrafts and sewing, so please refrain from purchasing if you are concerned about the details. Please note that it will be shipped folded.