Rubber Stopper, Color: Black, Stays pliable over a long period of time, For use with non-aggressive or concentrated solutions, Low sulfur content, Withstand temperatures from -25 to 70deg C, Approx. No. Per Lb: 16, Dimension: 34x27mm, Hole: 5mm, Size: 6.5
Game Our Solar System Learning Center-Grade 6-9, features a Curriculum Mastery Game with 30 illustrated, topic-specific question cards; 1 laminated game board; and materials for four players; 4-panel and visual guide, Write-On/Wipe-Off activities