The type of connection required from the flexi hoses to the water supply depends on the size and type of pipework or couplings that are already in place in your bathroom.
You may need to connect using a brass male coupling (pictured here)

- Brass Male Coupling
if there are no existing connectors on the pipes or you may need to fit a reducer if the existing connectors are larger than required.
If you are lucky the existing connectors will be a perfect match.
Use PTFE tape on all connections to ensure a good watertight seal.

PTFE tape
All these items can be bought from your local plumbers merchant.
Here is a diagram showing the layout for installing a basic basin mixer tap with pop up waste:


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The major problem is the space while decorating small bathroom. Therefor I stared searching the web for small bathroom remodeling ideas, then I found out your blog and I’ve decided to give a go with your advice. I will share with you my new bathroom image when finished remodeling. Wish me luck! :]
Dear Kasey, Good luck with your bathroom remodeling project. We look forward to hearing back from you once you have completed it. Some before and after pictures will be very nice too. You can email them to snowwater@mealing.co.za and we can share them on our site if you want.
will let you know how I got on once fitted basin mixer tap.my biggest concern is do I need pipes (copper ) & flexi pipes.?
Most basin mixer taps on the market are supplied with flexi pipes that you simply screw onto the house water supply. All the ones that we sell have these pipes included.