Get all three items; tempered glass, leads cable, and mains plug from this accessory pack.
We use this 5D tempered glass in our retail shops. These are high quality and will work with any 3D touch enabled device. This tempered glass is 5D curved and will protect the edges of your iPhone.
The Mains Plug is CE approved and will not fail you.
The Cable is MFI (Made For iPhone) and will not give you any issues when syncing to your iTunes.