Here you can buy a bundle of (4) shatter resistant E27 bulbs, these are 60 watts (60W) and frosted style A15 (see Light Bulb Sizes chart - I highlighted this one in orange, at upper left), made by industry leader Damar.

These are Damar Safe-Shield frosted bulbs, 130V, with model number 2660A and code 60A15IF/SS.

The bulbs are 3.25" high from top of bulb to bottom of stem, and 2" wide from side to side of the widest part of the bulb (see photos with ruler).

I have included many photos, so you can see what you are buying and every bulb I ship has been tested (I added a blue post-it note to the top of each box after confirmation, you can see a bit in 1st photo, and more fully in last photo).

$5 shipping within the USA, typically via USPS Ground Advantage Mail (sent in a box, with protection).   Also, priority mail is available for $11 if you need them very quickly.