diff --git a/stl/v3.2/README.md b/stl/v3.2/README.md
index 5989b874..ca06c557 100644
--- a/stl/v3.2/README.md
+++ b/stl/v3.2/README.md
@@ -13,16 +13,28 @@ The case consists of several parts.
 остальное по 1 шт
 ```
 
+# Buy options
+* [Small 5v fan](https://www.pishop.us/product/5v-cooling-fan) **strongly recommended** to avoid overheating in the case.
+* [I2C OLED screen](https://www.amazon.com/Pieces-Display-Module-SSD1306-Screen/dp/B08TLXYKS6).
+
 # The front part
-Choose **one** of them.
+**Choose ONE of them.**
 | Variant | Description |
 |---------|-------------|
 | <img src="case_a_no_oled.png" width=200 /> | [The front part](case_a_no_oled.stl) of the case **WITHOUT a hole** for the OLED |
 | <img src="case_a.png" width=200 /> | [The front part](case_a.stl) of the case with a hole **for installing the OLED** |
 
 # The back part
-Choose **one** of them.
+**Choose ONE of them.**
 | Variant | Description |
 |---------|-------------|
 | <img src="case_b_no_aum.png" width=200 /> | [The back part](case_b_no_aum.stl) of the case **WITHOUT AUM holes** |
 | <img src="case_b.png" width=200 /> | [The back part](case_b.stl) of the case **for installing the AUM** |
+
+# Spacers
+| Type | Description |
+|------|-------------|
+| <img src="spacer_6.2mm.png" width=200 /> | [6.2mm spacer](spacer_6.2mm.stl), required **TWO** pieces |
+| <img src="spacer_2mm.png" width=200 /> | [2mm spacer](spacer_2mm.stl) required **TWO for AUM** or **ONE without AUM** |
+| <img src="spacer_1mm.png" width=200 /> | [1mm spacer](spacer_1mm.stl) required **ONE for AUM only** |
+| <img src="low_spacer.png" width=200 /> | [Low spacer](low_spacer.stl) required **ONE** |