Fingertips feature deluxe-grade rubber construction to assure solid grip and long wear. Each tip has extra thick material for longer wear. Finger tip diameter measurements are approximate due to a few factors, including: natural variation in molded rubber materials, differences in where diameter is measures (inside vs. outside vs. flattened width) and slight stretch when handled.Fingertips feature deluxe-grade rubber construction to assure solid grip and long wear. Each tip has extra thick material for longer wear. Finger tip diameter measurements are approximate due to a few factors, including: natural variation in molded rubber materials, differences in where diameter is measures (inside vs. outside vs. flattened width) and slight stretch when handled.