Our 5 kN carabiners are compact, lightweight, and strong.  Rated to withstand 5kN (approx. 1100 lbs.) of force, they are useful in multitudes of situations.  They are sold individually for $4.95 or as a 4-pack for just $14.95.  Although they are quite strong, they are NOT to be used for climbing which would require a rating of 25 kN or higher.