Made of premium quality TPR material for long time and use. Scientific design assists kids to writing posture quickly. Ergonomic design, comfortable for children to hold. It has a simple design, but very practical in use. A perfect present for your children and students, and they will like it. Features - Color: Assorted Color. - Material: TPR. - Size: 21.80X7.80X3.50cm/8.57X3.07X1.38inch. - Made of premium TPR material, to use, offering a pleasant writing experience. - Help kids to learn the right writing posture quickly without any other obstacles. - The ergonomic design of writing training device is comfortable for children to hold, saving much time for parents. - Perfect gadgets for adults who are trying to correct and improve hand writing, for a comfortable grip, the grips help reduce muscle strain while ensuring a comfortable writing. - Considerate designed grip ring positioning more accurate, science triangle to let the children immobilize fingers on the designated proper position, achieve the purpose of training children to correct the grip pen habit. Package list: x writing grips