Hanging metal church directory sign letter kits are available in two styles; Traditional and Sure-Grip. The old style is called Traditional and the new style is called Sure-Grip. The letter kits are printed on aluminum in either white on black background or black on white background. Traditional letters have a lip along its top and hang from the message board rail. Sure Grip letters hold on to the rails of the message board at the top and bottom of the letter. Spell out any message with a dictionary of letters that hang or grip on the tracking. Includes an assorted variety of letters, numbers, and punctuation. Set provides more of the vowels and primary consonants than the lesser used alphabet. See table below. Individual letters are not sold separately, kits only.