Here's a new pair of Front Brake Caliper Pistons (x2) for the following models from MG -

MG

MG C (3.0 Litre)      (1967- 69)

(** Type 16pb Calipers Only **)  

** You'll need to identify your caliper type, if you take out the brake pads and look at the pistons you'll see they are surrounded by an external rubber ring held in place by a metal clip. Also you can see in the photos the exterior rubber ring is quite thin. 

The other type of caliper (16p) has a much fatter Bellows type external seal and no metal ring.

You get a pair of Pistons here which is enough pistons to repair x1 caliper.

Please change the quantity to x2 if you want to replace the Pistons on both Calipers.

(I also have the front caliper seals, pads & fitting kits if you want them).