Hand Held Centripetal Force Kit, Kit Includes: Plastic Handle, Rubber Stopper, String, 20 Washers, 2 Paper Clips, Provides The Necessary Tools To Discover Properties Of Rotational Dynamics. A Rubber Stopper Swings Around On The End Of A String Counter Balanced
Deluxe Learn to Solder Kit, contains: SL-75 Variable temperature station with conical tip, SL-75T2 Wedge tip, SP-1A Solder practice kit, ST-1 Side cutters, SE-1 Solder ease kit, Dimensions: 18 x 16 x 10in, Temperature range: 350 deg to 900 deg F