Features:

• GENERAL CARRYING CASE FOR SLIM CYBER-SHOT(R) CAMERA, STORAGE FOR MEMORY STICK(R) MEDIA & EXTRA BATTERY, CASUAL & LIGHTWEIGHT, FEATURES BELT LOOP FOR EASY CARRYING

Editor Reviews:

Product Description:
Sony's worldwide reputation for creating unique, attractive, high-quality, advanced technology products rests on a long line of innovations embraced by people from all walks of life. With a diverse product lineup serving a variety of lifestyles and industries, Sony continuously strives to introduce new products and technologies to meet changing market needs.

Rating : - not big enough for w170 and a back-up battery
If you have a w170 and a back-up battery you want to bring it along with you in this little case, you can do it, but the case will look ugly.
May fit smaller cameras better.