The Eastern Bikes Big Softy V2 Universal Exercise Seat.

Product Specifications:

• WIDE SOFT and COMFORTABLE:Our extra soft padding and dual spring suspension system provide the ultimate in a soft plush ride allowing you to enjoy riding like your memory of being young and free allowing you to ride longer pain free.
  
• UNIVERSAL RAIL SYSTEM:Weve designed this seat to make it work with 7/8" standard seat posts as well as rail clamping seat posts.
• GREAT REPLACEMENT SADDLE: This seat is an incredible replacement for everyone who is looking to upgrade the stock seat that came stock on their exercise, stationary or comfort bike that didnt live up to expectations. This comfort seat will change the way you ride for the better.