HIGH PRECISION CUTS AND MILLING: Unparalleled fit for your beekeeping needs; standard outside dimensions ensure compatibility with all uncappers; experience the Mann Lake quality in every frame. 33% THICKER BOTTOM BAR: Built to last with a full ½" thick bottom bar resulting in fewer blowouts and less burr comb; perfect for the diligent beekeeper aiming for the best hive health. COMPATIBLE WITH 9 5/8" HIVE BODIES: Designed for use with 9 5/8" hive bodies and 8 1/2" foundation; groove top bars are ideal for Rite-Cell Foundation; a seamless fit for easy assembly. NAIL GUIDANCE PROVIDED: Assembly made easy with nail recommendations; use 1 1/4" nails (Item HD220) for top and bottom bars, and 3/4" nails (Item HD245) for secure attachment; nails not included, ensuring you can customize your setup. PACK OF 100 FOR LARGE SCALE BEEKEEPERS: Whether you're expanding or maintaining your apiary, this 100 pack has you covered; optimal for beekeepers looking to scale their operations or replace older frames with precision-engineered alternatives.