K'Nex Intermediate Math and Geometry 920-Piece Set with Teacher's Guide (79028A) A silver conductive pen that

A silver conductive pen that dispenses acrylic lacquer pigmented with highly conductive silver flakes

There is also an alarm setting

From the Manufacturer 3M Protective Coverall 4520 is safety work wear designed to help protect against certain light liquid splashes and hazardous dusts

10 pieces each of the following IC's: LM317T

K'Nex Intermediate Math and Geometry 920-Piece Set with Teacher's Guide (79028A) A silver conductive pen thatThe K'Nex 79028A Intermediate Math and Geometry set builds 95 K'NEX Maths and Geometry models, up to four simultaneously. The 920 piece set is sufficient for 8 to 16 students and is designed to address critical mathematical concepts in the secondary school classroom. It provides instructional models that will help to enhance your students' understanding of important concepts and algorithms. Suitable for ages 9 and up. Set includes Building