Mattel #6345 Space Bubble

#6345 Space Bubble Box Front

The Space Bubble is a trailer-like accessory designed to be pulled by a vehicle like the Uni-Tred Space Hauler.

MMM Space Bubble


The box is made of corrugated cardboard printed on all sides (in black, white and blue ink), except two sides which have an applied full-color, process-printed label (top and front). The box measures 10" by 10" by 9". Copyright is 1968. The box reads: "Hitches to Mattel space vehicles!...Holds Mattel astronauts! Rolls 360 degrees over planet terrain!...Gyro-seat keeps astronauts upright!...Tinted protective bubble!

#6345 Space Bubble Box Top
#6345 Space Bubble Box Ends
#6345 Space Bubble Insert 1
#6345 Space Bubble Insert 2
#6345 Space Bubble Insert 3
#6345 Space Bubble Instructions and Sticker Sheet

Sticker Sheet:

Instruction Sheet:

Mattel #6345-0920 Space Bubble | Back

Mattel Catalog Specifications:

First Appearance: Mattel Toys 1969 "Fall" Catalog Page 55.

SPACE BUBBLE hitches to the UNI-TRED, SPACE CRAWLER, or FIREBOLT SPACE LAZER! Gyro-Seat Control Center safely transports astronauts on space expeditions while plastic chamber rotates a full 360'! Protective SPACE BUBBLE tint deflects dangerous rays!
For convoy action, two or more SPACE BUBBLES can be hooked together. Vehicles and additional SPACE BUBBLE not included in this set.
Std. Pack: ½ Doz.
Wt: 4 Lbs.


The bubble could come in any combination of three different shades of clear plastic: blue, smoke gray or tan. It is much more difficult to find bubbles that are all made of a single color.

John's Notes:

I've always enjoyed the Space Bubble, especially when combined with the Uni-Tred. The Bubble as a stand-alone accessory was probably not as popular as when combined with the Uni-Tred as a set. I've found these boxes to be relatively difficult to find. Most store-stock examples I've seen are in the British Major Matt box rather than in the US release box.

Accessory may also be found in:

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