I do not post this item. It is collection only. 
Please check for current stock and prices but as a guide here are the prices when writing this in may2025 
100g £4.99
230g £6.99
450g £8.99
Highlander’s mix of Propane, Butane and Iso-Butane gas features a self sealing operation and is available with a choice of three sizes: 100g, 230g and 450g. The Isobutane blend allows for enhanced performance at lower temperatures and the flame produced is crisp and perfect for cooking 
These gas cartridges are compatible with most stoves including the Jetboil models and of course any of the Highlander models. The thread is a standard fitting with a relatively large valve 
It’s recommended to disconnect these cartridges whilst not in use; however with its’ self sealing valve this is not an issue, but is strongly recommended to perform this operation in a well ventilated area from any ignition sources
Product Specification
• Compatible with most gas stoves including Jetboils
• Available in 3 Sizes: 100g, 230g or 450g
• Valved Cartridges with standard thread fitting