High quality - ABS environmental protection material.Strong velcro straps. Provide strong support and maximum comfort,can be fixed wrist and thumb, radian can adjust yourself, wear easy and comfortable .Protect fingers- Control the increase of muscle tension and big fish muscle atrophy. Prevent finger flexion convulsion, deformation and deformity.Increase fingers erosion and finger joint scar contracture prevention. .For people - Suitable for people who has brain injury, cerebral palsy, paraplegia, cerebral infarction sequela, all kinds of craniocerebral surgery and Parkinson's disease and peripheral neuropathy caused by hand function disorder, muscle tension, limb abnormal tension and brain injury patients. .For people - Suitable for people who has brain injury, cerebral palsy, paraplegia, cerebral infarction sequela, all kinds of craniocerebral surgery and Parkinson's disease and peripheral neuropathy caused by hand function disorder, muscle tension, limb abnormal tension and brain injury patients. .About size - One size fits most, unique splint that allows for individualized finger adjustments and allows you to adjust each finger independently. Can be used left hand or right hand. .