Requires 5 small blue buttons.

Actual size measurements not stated.

1959 version specified yarn:
Coats & Clark’s Red Heart Baby Wool 3 Ply, Article E 284: 2 skeins of No. 802 Baby Blue

1975 version specifies acrylic instead of wool yarn:
Coats & Clark’s Red Heart “Baby Wintuk” Ready to Use Pull-Out Skeins 3 Ply: 4 ounces of any color