The STINGER CH38 Cap Hammer is designed for those who prefer an economical, non-pneumatic solution for delivering the holding power of a cap and staple with the speed and ease of a hammer tacker. They deliver best practice installation of residential roofing felt, housewrap, and rolled insulation, and get the job done for a fraction of the cost of a pneumatic cap stapler without the additional hassle and expense of a hose, compressor, and power requirements.