SKB Parallel Limb Hard Bow Case. The SKB hard archery parallel limb bow/rifle case has heavy-duty, field-replaceable locking latches, a spring-loaded end handle for comfortable towing and molded-in bumper protection to maximize impact resistance. Quiet glide, heavy-duty wheels are included for easy transport. Secure "tie-down" loops allow for ATV transport. SKB Bow Cases. SKB Parallel Limb Hard Bow Case.