Height: 14.5 cm (vertical) x 9 cm (horizontal). Used by a child from the second grade to the end of the third grade (2 years). The child's height at the time was approximately 120 cm to 140 cm. The silicone fit the shins well and felt comfortable. The material is designed to prevent slipping even when sweating. There is some deterioration and cracking of the rubber, but it is not a peeling type of tear. Please refer to the photos.