Leg Master Reviews: Is The Leg Master Any Good? Reviews on Leg Master Slim: Is the leg master any good? Leg Master by Fiona Summers can be used to burn calories and fat and tone and strengthen different muscles. It uses a lateral gliding motion along a curved track. This was originally designed to strengthen the weak pelvic floor after birth. Your inner thighs … [Read more...] about Leg Master Reviews: Is The Leg Master Any Good?