Extender Bars in conjunction with Scroll Rods allow you the versatility and convenience to size your frame to any project you desire. Extender Bar sets include two Extender Bars which are compatible with every size Scroll Rod (not included). Extender Bars are available in many sizes. Length refers to actual measurement between Scroll Rod holes (distance between Scroll Rods). Constructed of Oak. Made in USA.
-20 To 20 Student Number Lines Manipulative, Grade K-3, 30 Pieces