please check size before your purchasing. Black holder size: full length 16cm wide 4cm, suitable for ice nails with a diameter of less than 1cm Ice nail: length 20.5cm width 11cm, drill diameter 8mm. Ice Fishing Essencials: This adapter is the ideal companion for your ice fishing auger, making it easy to install ice anchors and ensuring a stable and secure ice fishing environment. Effortless Ice Anchor Installation: With this ice fishing auger you can easily drill ice anchors into the ice, providing a solid anchor point for your tent, equipment, and accessories. Say goodbye to the hassle of manual installation. Wide Application: This ice fishing auger can help you easily drive ice nails into the ice ground quickly, effectively saving your time and effort of setting up tents, suitable for ice fishing and field tents. It will be your good assistant. Durable Material: This ice anchor tool is made of quality metal, which is durable and reliable, and has a simple and beautiful appearance.This Ice Anchor Drill Adapter is built to withstand the harsh winter conditions and the demands of ice fishing.