The MAST® FIT aid has been designed with the following features and benefits: Secure Bottle Stand - designed for effortless use and accessibility. This stand firmly holds the bottle, making it easy to reinsert the sample collection stick and close the bottle securely with one hand. Functional tactile elements - including a raised orientation marker and QR code guide, ensuring you can easily access instructions and online resources. Central channel - allows reliable, ambidextrous use for sliding the stick into the FIT sample bottle. Accessible instructions - features a printed sheet with large, easy-to-read text and high-contrast images, complemented by a dedicated website offering screen scrollable instructions, video, audio, and transcripts that are screen reader compatible. Additionally, the FIT aid includes RNIB-approved uncontracted Braille, providing essential information to guide the user where to access the instructions. Please contact FIT@mast-group.com for more information. The MAST® FIT aid has a patent granted for its application (GB2616828).