Believe these are Blenko glass balls each measuring about 2". Each is slightly different and has many other colors and sizes in other listings. All purchased at an old estate. Price is for 1 yellow ball, other colors and sizes are in separate listings.

Brand: Blenko
Type: Decorative Ball
Color: Yellow
Theme: Colorful
Material: Glass
Production Style: Art Glass
Subject: Balls
Handmade: Yes
Vintage: Yes