Highly durable; No inserts, spacers, or adjustments at all; Easy loading; the rounds just drop in with no fingers pushing or pressing them; No more pain! Load hundreds of rounds painlessly; Has a simple rounds' unloader feature too; Protects your fingers and mags; Up to one round per sec. loading rate. 1/3 the time loading mags compared with thumb-loading; Fits in hand and pocket, weigh approx 42 grams (1.48oz); Black Finish