C.A.M.P. Ball NUT N.4

"Experience the ultimate in climbing freedom with the Ball NUT N.4 from C.A.M.P, an innovation that is revolutionizing climbing in the most challenging rock cracks. Originally developed by Steve Byrne in 1987 and known as Lowe Balls, these protection devices are an essential tool for anyone venturing out on self-protected climbs. The Ball Nuts are specifically designed to fit into the tightest and most parallel rock cracks where conventional belaying methods fail and pitons are the only alternative."
"These little wonders not only offer security in the narrowest cracks, but are also ideal for "Pin Scars" cracks caused by constant hooking. In these and other small cavities, where even the most modern microcams reach their limits, the Ball Nuts are a reliable partner. Their extreme lightness makes them the perfect companion for experienced climbers on classic tours. Always keep a pair of these indispensable helpers in your equipment to master any challenge with confidence and safety."