# Keyring > Keyring is a coming-soon rental system for camera, lighting and grip rental houses. Inventory with serials and condition, bookings that refuse double bookings, contracts and deposits, check-out and check-in logs, late returns and billing. Join the waitlist. Keyring is a product made by Thinkiyo (https://thinkiyo.com/). Keyring is coming soon and is not yet generally available; there is a waitlist. Like every Thinkiyo product, Keyring runs in the customer's own cloud or self-hosted, and customer data stays in the customer's own database. A person approves anything that goes out to a customer. Contact: hello@thinkiyo.com. ## What it is Every kit out. Every kit back. On record. Book kits, log condition at the door and hold deposits, for camera, lighting and grip houses. Rental management for camera, lighting and grip rental houses: inventory with serials and condition, availability, bookings that refuse overlapping dates, contracts and deposits, check-out and check-in with condition logs and timestamps, late returns, extensions and billing. Coming soon. ## Who it is for Camera, lighting and grip equipment rental houses serving film and video crews ## Key capabilities - Track every serial: Condition, notes and status for every item, across locations. - Refuse clashing bookings: An overlap is blocked, with the booking in the way shown. - Book, sign and hold the deposit: Reservation, contract and deposit live on one booking. - Log condition at both ends: Damage ties to the booking it happened on. - Handle late kits and extensions: Due-back flags, delay marks and late fees on your terms. - Bill what went out: Daily and weekly rates, part payments and refunds tracked to the booking. - A camera kit leaves: Every serial and its condition is logged, and the contract signed. - A lens request that would clash: Keyring refuses the overlap and shows when the 35mm is free. - A shoot runs over: The booking is extended and the new dates are on the bill. - Kit A comes home: A cracked hood is logged and the deposit stays held. ## Pages - [Keyring](https://thinkiyo.com/keyring/): Rental management for camera and grip houses - [Full text for language models](https://thinkiyo.com/keyring/llms-full.txt): every section, the FAQ and every blog post as plain text - [Blog](https://thinkiyo.com/keyring/blog/): Notes on running a camera, lighting and grip rental house. ## Blog - [How to prevent double bookings at a camera and lighting rental house](https://thinkiyo.com/keyring/blog/how-to-prevent-double-bookings-in-equipment-rental/): A practical guide for camera, lighting and grip rental houses on stopping double bookings, logging condition and handling deposits and late returns. - [What we're building with Keyring: rental management for camera houses](https://thinkiyo.com/keyring/blog/what-we-are-building-keyring/): Keyring is coming soon. Here is the rental-house problem it is built for and what it is designed to do, from booking to check-in and billing. ## Optional - [RSS feed](https://thinkiyo.com/keyring/blog/rss.xml) - [Privacy](https://thinkiyo.com/keyring/privacy/) - [Terms](https://thinkiyo.com/keyring/terms/) - [Thinkiyo](https://thinkiyo.com/llms.txt): the company and every other Thinkiyo product