Gluckskafer Building Slats - Tower Straws is the only ISO 13485:2003

is the only ISO 13485:2003 certified menstrual cup manufacturer and head office in the world

so you can feel good about using it every day

In the Montessori Pedagogy it is used to classify colors and sizes

3”W x 3”H x 1

Gluckskafer Building Slats - Tower Straws is the only ISO 13485:2003Gluckskafer Building Slats Tower includes: 60 pieces in wooden frame measuring approx 22 x 11 x 10cm. Each slat measures approx 9 x 3 x 1 cm in different colours SAFETY RATED FOR AGES 2+ Gluckskafer blocks are coloured with water based stains that bring out the characteristic of original wood. The surface feels slightly rougher to facilitate construction projects.