TMR Warenhandel is an online retailer specializing in new, original LEGO® sets. Its shop offers a range of themed collections, including LEGO® Icons, Ideas, Star Wars, City, Technic, Harry Potter, NINJAGO, Super Heroes, Gaming, and special editions and exclusives. The selection features sets for different interests, from the Lord of the Rings: Rivendell and a Batmobile to themed builds inspired by SpongeBob SquarePants, Downton Abbey, SEGA, and Nike.

Products are described as new and in their original packaging, with delivery by DHL. Customers can browse the online catalogue, add sets to their basket, and pay using options including PayPal, Visa, Mastercard, Apple Pay, Google Pay, Klarna, Amazon Pay, or bank transfer in advance. The website also provides information on shipping and payment, returns, cancellation rights, terms and conditions, and customer contact.

TMR Warenhandel is operated by Timo Marco Rust. The site states that it is neither sponsored nor authorized nor supported by the LEGO Group; LEGO® is a trademark of the LEGO Group.