Classic Trial Size

4284-1 Universal Building Set 1999 123 parts 2% Easy

Classic Trial Size (4284-1) is a LEGO set with a listed count of 123 parts. Available inventory data is shown below.

Parts Inventory

🧱 123 parts

Showing the first 12 rows of the parts list (123 pieces in total). The full list loads automatically.

PartQty
2×
€0,06
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1×View
1×View
2×View
1×
€0,22
View
1×
€0,22
View
2×
€0,13
View
2×
€0,13
View
2×
€0,13
View
2×
€0,13
View
4×
€0,11
View
2×
€0,11
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Catalog rarity

How common are the parts in Classic Trial Size?

2%Low rarity
more commonless common

1 of 50 recorded part+color combinations appear in 3 or fewer sets in our catalog. This does not measure replacement availability or price.

Theme average

1.9%

All sets

6.7%

Least common in our catalog

Torso Vest, Striped Undershirt, Zipper,… · White · only this set in our catalog
How we calculate this →

More Universal Building Set sets

Browse more LEGO Universal Building Set sets related to Classic Trial Size, including models from 1999 and other sets in the same theme.

View all Universal Building Set sets →

Build DNA

Parts inventory insights for Classic Trial Size

123 pieces puts this build -73% against the average Universal Building Set set and -36% against the average 1999 release.

LEGOUNIVERSAL BUILDING SET

Vs average Universal Building Set set

-73%-332 parts
This set123
Average set455

Average Universal Building Set set: 455 pieces across 55 other sets.

Vs average 1999 set

-36%-69 parts
This set123
Average set192

Average 1999 set: 192 pieces across 144 other sets.

Color profile

9different colors

Dominant color

Blue

Blue38x
31%
White27x
22%
Red26x
21%
Yellow20x
16%

Unique parts

3.4 pieces per unique type

36

Repeat factor

Average pieces per unique type.

3x

Most used part

Brick 1 x 1

Brick 1 x 122x

Results are based on official LEGO part inventories. Accuracy improves as you confirm set completeness.

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