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equipment 
Complete range of accessories used in climbing.
D carabiner 
Metal ring that opens and closes with a spring-loaded gate; it is used for attaching rope to a piton, a chock, etc.
rope 
Thin cable with a braided center core that makes it stretchy and strong and a woven sheath that surrounds and protects the core.
locking carabiner 
Metal ring with a gate that, once closed, can be locked with a screwsleeve; this makes it safer than the D carabiner.
gate 
Moving metal part that opens inward and has a spring-loaded closure.
screwsleeve 
Device that locks the gate into a closed position.
latch 
Part over which the gate closes.
descender 
Metal accessory through which a rope slides that is used to protect the rope and the climber’s hands; it acts as a brake during rappel descents.