Senpai3D is an online shop offering 3D-printed and laser-cut gear inspired by video games, anime, and popular entertainment. Its catalog focuses on fan-art props and collectibles designed for cosplay, display, and play, with many items made in full scale. Customers can browse products by theme, including Apex Legends and Titanfall, Overwatch, Fortnite, Pokémon, Valorant, League of Legends, Destiny 2, Nintendo, and anime.

The range includes replica-style weapons and equipment, such as heirloom blades, rifles, pistols, grenades, staffs, and guitars, alongside wearable or display accessories like crowns and a Nintendo Switch-compatible Sheikah Slate case. Other offerings include a Fortnite loot chest described as a toy, bank, or cake topper, as well as smaller items such as a loot llama piñata and a Valorant knife prop. Product listings show individual prices, with some items marked on sale and others available at starting prices. Senpai3D also provides customer reviews and publishes shipping and return or refund policies, giving shoppers information about ordering and post-purchase support.