ALTB1009 Features: * Easy to use "Peel and Stick" backing * Special soft foam provides the ultimate in comfort and sound deadening qualities * Conforms for a complete fit for glasses wear * Replacement recommended every 9 to 15 months * For slim, mag, ultra 28 and 33 models * Made in the USA * 4" H x 4" W x 6" D, 1.5 lbs Includes: * Kit includes (2) pro form leather sealing rings, (2) microphone covers and (2) sets of Interior Foam for battery cover Collection: * Pro collection