Your cart is currently empty
Plus-Plus 70-piece tubes offer endless creativity with one simple shape. Kids can build mosaics, characters, aliens, dinosaurs, superheroes, and dragons. Portable, reusable, eco-friendly, and perfect for STEM learning for ages 5–12.
Available in store
ClosePlus-Plus 70-Piece Tube: One Shape, Endless Possibilities
The Plus-Plus 70-Piece Tube is the perfect way to jump into the world of open-ended building. With just one clever shape, kids can build flat mosaics, cool 3D creatures, tiny characters, and whatever else their imagination sparks. It’s simple, satisfying, and incredibly versatile, and once they start, it’s hard to stop.
Each tube includes 70 colorful pieces plus a foldout instruction flyer. Kids can follow the guide to build the featured character, then start inventing their own designs. The pieces click together in a way that builds fine motor skills, focus, problem-solving, and patience. It’s a screen-free STEM activity that feels more like play than learning… which is truly the best kind.
Plus-Plus tubes are reusable, portable, and perfect for on-the-go fun. Toss one in your bag, keep one in the car, or stash a few for travel days or quiet time. Made in Denmark in a zero-waste factory powered by renewable energy, they’re durable, eco-friendly, and designed to last.
Suggested for ages 5–12.
What’s Inside
Tube Options:
Basic Tube
A rainbow of classic colors:
Red, Orange, Yellow, Green, Blue, Purple, Brown, Gray, White, Black.
Perfect starter set for experimenting in 2D and 3D.
Alien Tube
Includes:
Perfect for kids who love space, sci-fi, or glowing nighttime builds.
T-Rex Tube
Includes:
Superhero Tube
Includes:
Great for action-story play and heroic 3D builds.
Dragon Tube
Includes:
Kids can create fiery fantasy creatures or design their own mythical beasts.
Shipping & returns
Orders are sent via the best way and include USPS Ground, 1st Class & Priority, UPS & Fedex. Shipping confirmation will be emailed to you upon shipment. Ships Monday through Friday from Mineola Texas.
Returns accepted within 10 days of receipt. You must contact us to start a return. Any return must be in new condition, unworn/unused, with tags attached.
All other items, such as vintage/one of a kind, gourmet food items, holiday/seasonal, etc. are final sale, no returns accepted.
SHIPPING OUTSIDE THE US: If you reside outside the contiguous US or Canada and would like to make a purchase, please contact us so that we can obtain a shipping quote. Email [email protected] with your shipping address and item(s) you would like to purchase.
Payments & Layaway
LAYAWAY PROGRAM:
We have a layaway program at the Periwinkle Shoppe. We require 20% down, with the balance to be paid off within 90 days. We do not require regularly scheduled payments, so you can pay as you need, however, we are not able to store or run your credit card, so you will need to inform us when you wish to make a payment so that we can send you an invoice. Please note that any canceled layaways will receive a store credit only. Regular return policy applies to layaway items.
If you would like to set up a layaway, please contact us to let us know what item(s) you would like to purchase and we will get it set up for you. The quickest and most reliable way to reach us is by text to 214-235-2022 or email [email protected].
ACCEPTED PAYMENT METHODS:
We accept payments through Paypal and the following credit cards through our secure site:
Visa
Mastercard
Discover
American Express
Product carousel items