One pair of flexible pushfit tap connectors suitable for Monobloc (single tap hole) basin taps 300mm long.
The internal thread on a monobloc basin tap is usually either 12mm or 10mm (not guaranteed)
These will be ideal for any tap with a 10mm internal thread. Thread in hand tight.
Speedfit 15mm pushfit connectors on the other end will enable you to easily connect to 15mm pipework.