Plastic vs. metal: Splints are created of possibly plastic or steel. Steel is more resilient and less adaptable than plastic, which In cases like this is an efficient thing. On the other hand, metallic splints can have sharp edges that wear via material faster than plastic. Metal also adds bodyweight. https://modernsmarthealth.com/product/therapy/pain-management-therapy/finger-hand-brace/hand-physiotherapy-rehabilitation-training-dynamic-wrist-finger-orthosis-for-apoplexy-stroke-hemiplegia-patients-tendon-repair/