MSA SAFETY WORKS IN-2097 - SLEEVE BASE - SLEEVE BASE, BASE FEATURES FLUSH, BASE INSTALLATION FIXED, BASE MATERIAL STAINLESS STEEL, BASE MOUNT STYLE FLOOR MOUNT, COLOR GRAY, COMPATIBLE COMPONENT UPPER ARM MAST, CONFINED SPACE COMPONENT SLEEVE ADAPTER BASE, FOR USE ON CONCRETE FLOOR, FOR USE WITH MSA SAFETY XTIRPA ADAPTER BASE SYSTEM, HEIGHT 9 1/8 IN, INCLUDES MOUNTING HARDWARE NO, LENGTH 4 IN, MOUNTING LOCATION FLOOR, MOUNTING TYPE BOLT-ON, NO. OF MOUNTING HOLES 0, STANDARDS OSHA, ANSI, CSA, TENSILE STRENGTH 8,640 LB - EQUAL TO 60UH69