This is a great tool for picking up waste from corners, cracks and crevices. It fits onto 38mm vacuum extension tubes or directly onto a Numatic 38mm flexible hose. The crevice tool is 305mm long and made of ABS (there are no sharp edges to damage surfaces). The nozzle opening is wide enough to pick up most things while still allowing access to narrow openings. The tool is suitable for wet or dry use. It is compatible with any vacuum cleaner with 38mm tubes or hose.