INTsa is an online retailer offering a broad selection of hardware, tools, home-improvement supplies, and household products. Its catalogue serves both everyday domestic needs and practical trade and maintenance tasks, with products organized across areas such as plumbing, construction, carpentry, locksmithing, painting, gardening, and workplace equipment. Shoppers can browse manual and power tools, machinery and accessories, locks and handles, adhesives, sealants, brushes, paints, plumbing fittings, taps and sinks, heating and climate-control products, kitchen utensils, small appliances, and garden equipment and furnishings.

The site also features products from a wide range of recognized manufacturers and specialist suppliers, including TESA, Stanley, Makita, Black+Decker, Bellota, and Kärcher. Customers can review featured, new, discounted, and best-selling items, with product pages showing references, brands, prices, and delivery estimates. INTsa provides online account registration and shopping-cart ordering, and lists telephone and email contact details for customer enquiries.

Delivery timing varies by item, with examples on the site ranging from 48–72 hours to 7–10 days