Sometimes installing Circlips can be tricky, but here are two simple guides for helping with your fitting.

How to install External Circlips: https://springfasteners.co.uk/wp-content/uploads/2017/02/How-to-install-an-External-Circlip.pdf

How to install Internal Circlips: https://springfasteners.co.uk/wp-content/uploads/1970/01/How-to-install-an-Internal-Circlip.pdf

Shop for Circlip Pliers here: https://springfasteners.co.uk/product-category/circlip-pliers-external-internal-straight-bent-nose/