Smartivity Pump It, Move It, Hydraulic Arm

Item #3156305

$44.93 $28.93

Available for giftwrap!

Ships today if ordered in the next:


  • Advanced level assembly skills recommended
  • Assembly Challenge: Highest (2.5 hours)
  • 256 parts. No batteries or tools required
  • For ages 8+. Best Built Together with an adult

Give ‘Em a Pat on the Back for Making a Working Hydraulic Arm

Watch as your child’s confidence soars after building their own working hydraulic arm! The step-by-step illustrated instructions will guide them through the entire process. Along the way they’ll be experiencing hands-on learning and experimenting with physics in this fun, interactive kit.

Includes 256 parts and 146-page illustrated manual. No batteries needed. Assembled model measures approx. 24” x 10” x 7”. The most involved assembly challenge in the Smartivity series, this project is best built together with an adult. For ages 8+.



What makes Pump It, Move It Hydraulic Crane unique?

This project helps children develop analytical and cognitive skills as well as spatial awareness while encouraging creativity. Plus, it’s FUN! Kids will enjoy exploring concepts hydraulic systems, rack & pinion mechanisms, crane mechanics, pressure and movement. Kids can also express themselves by colorfully decorating their completed model with paint or markers (not included).

Best Built Together

The Smartivity line of STEM model kits are specifically designed as entry level construction projects for 8-11-year olds. We recommend building them along with your child. The wood components are laser-cut for a precision fit. Their ‘no-tool’ assembly allows kids to focus in on the actual process. All parts are connected using different sized rubber bands and plastic snap clips – no glue is needed. The step-by-step illustrated instructions are easy to follow. Each kit is a working model that demonstrates STEM concepts.

The end result: Quality time well spent together



From Greg our Scientifics Catalog Manager:

“Although fully capable of assembling them independently, my 10-year old son and I assembled each of these Smartivity kits together – and we had a blast! Each took 1-2 hours to build and resulted in an interactive model my child was both eager and proud to demonstrate. My highest recommendation!"


Part of the SMARTIVITY series of kits.

Also available:

Smartivity Mix n Match Color Imaginator (item# 3156368)

Smartivity Clickety Flix Retroscope (item# 3156367)

Smartivity Stop Drop Gravity Transporter (item# 3156370)

Smartivity Xylofun Music Machine (item# 3156284)

Smartivity Roller Coaster Marble Slide Kit (item# 3156369)

More Information
Age Range 8 And Up
Price Range $25-$50

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