They are breaking boards for taekwondo, made of . Like any martial arts practice, breaking should be practiced under the supervision. It is board that is used for indoor sports such as school gymnasium and martial arts. This allows your child to practice taekwondo, which they will enjoy, and exercise can build up everyone's resistance. Features -Color:Khaki -Material: -Size:30.00X20.00X0.30cm/11.79X7.86X0.12in -Selection of high-grade wood material, wear-resistant and durable, can serve you a long time. -Prepare for your taekwondo test and push your strength with an advanced board. -This breaking board is very professional and practical when taekwondo competition. -Children can improve their taekwondo skills through this training board, which is an essential prop for them. -This product is exquisitely crafted and durable, and is widely loved by most people. Package list: 30 x Wood Boards