A hinged, spring-biased clamp with configurable weights grips the disc securely to emulate throw resistance for warm-up and strength training.
Elastic side rails and a wedge-shaped base conform to different disc rims, limiting movement and reducing transport abrasion.
An elastic detachable connector boosts toy launch speed and rotation while enabling interchangeable heads, secure grip, and easier carrying.
Using n×2 photo-sensors and a retro-reflector, this case shows how overlapping dart hits can still be triangulated accurately.
Segmented pockets, off-road wheels, and a removable tripod seat help athletes carry heavy throwing gear, protect equipment, and find items faster.