Glass bottles are microwave safe [remove pumps: we don't recommend ANY plastic in the microwave]

They are BPA and lead free and built to last even with daily use

They are also free-standing if you would like to use for shelf decor

Material--wood and MDF wood

Pump size and cap size 38-400 (38 mm

Falling Wood Domino Wall (Wall Mount or Table Top) squeeze bottles Glass bottles are microwave safeSpace saving, easy to install assemble, educational and fun for kids! Each domino wall is vibrantly colored in the pattern of a rainbow and pulled upright by the unique shapes attached to the string below. Once all of the wooden blocks are standing, your child can knock them down and watch as each one tumbles into the next. The long piece of wood that the dominoes are attached to, or the wall can easily be hung from any wall in your home or classroom.