The premium trimmer t-blade guide comb accessory kit comes with 12 individual guide combs ranging in length between 1/16" and 1". These guide combs fit trimmer t-blade sizes 1 5/8" x 1 1/8". The metal attachment clip provides a secure fit to the blade, so you never have to worry about it falling off. The guide comb sizes are printed large & clear on the metal name plate for easy comb size identification.