When you need small compression springs for a repair or project, the choice often comes down to two similar-looking stainless steel assortment kits: a 300-piece set with 30 sizes and a 390-piece set with 28 sizes. One gives you more pieces and a lower listed price; the other gives you a broader size ladder. Here's how they stack up.
Quick verdict
For most DIY and shop repairs, the 390-piece 28-size set earns the nod if you want the most springs for the money and don't need every fractional step. The 300-piece Ninoge kit earns the nod if you want the smallest and most granular size progression. The listed price difference is $1.03, so either choice is close.
Comparison at a glance
| Product | Listed Price | Price Bar | Piece Count | Size Count |
|---|---|---|---|---|
| Ninoge 300-Piece Compression Spring Set | USD 11.93 | 300 | 30 | |
| 390-Piece 28-Size Compression Spring Set | USD 10.90 | 390 | 28 |
The 390-piece set lists for $1.03 less than the 300-piece set.
Where each product wins
- Ninoge 300-Piece Set - More size options (30 vs 28) and the kit provides 10 pieces per size, which helps when you need a specific wire diameter. It also carries a brand name for easy reordering.
- 390-Piece 28-Size Set - More total springs (390 vs 300), a lower listed price, and it includes a compartment case with labeled sections plus explicit ranges for wire diameter, outer diameter, and free length.
Product notes
Ninoge 300-Piece Compression Spring Set
This Ninoge kit holds 300 springs in 30 sizes, with 10 springs per size. The finer size ladder helps when you need a close match for a miniature spring. Dimensions are listed in inches, and the material is stainless steel. You give up 90 pieces compared to the other set, and the listed price is $1.03 higher, so your trade-off is piece count for size granularity.
390-Piece 28-Size Compression Spring Set
This 390-piece set spans 28 sizes, covering wire diameters from 0.3-0.8mm, outer diameters from 2-8mm, and free lengths from 5-30mm. It comes in a compartment case, and the listed price is $10.90, which is $1.03 less than the Ninoge set. You get 90 more springs, but only 28 size steps, so the intervals between sizes are a bit wider. It's aimed at DIY, automotive, and household repairs.
Final choice by use case
- Choose the Ninoge 300-Piece Compression Spring Set if your priority is size variety: 30 sizes means fewer gaps between wire diameters. You'll pay $1.03 more and get 90 fewer springs, but the finer selection can save a trip when exact dimensions matter.
- Choose the 390-Piece 28-Size Compression Spring Set if you want more springs and a lower listed price. The 28-size range covers the most common applications, and the compartment case is a practical bonus.
