diff --git a/Ploopy-Trackball-Kit-Assembly,-Revision-D.md b/Ploopy-Trackball-Kit-Assembly,-Revision-D.md
index 1f114b9..ed8a690 100644
--- a/Ploopy-Trackball-Kit-Assembly,-Revision-D.md
+++ b/Ploopy-Trackball-Kit-Assembly,-Revision-D.md
@@ -150,6 +150,7 @@ Prepare the following components:
 
 - Stop laughing at the names already.
 - More importantly, the insertion step should be done **very gently**. These parts are quite delicate. Take your time and don't bend things unnecessarily.
+- Important: the Scroll Wheel Holder Holder (the bigger of the two parts) is printed with some support material. Make sure that it is fully removed prior to the next step. See the photos for more details (the photos in this step show the Scroll Wheel Holder Holder with its support material removed successfully).
 
 ## Step 17: Insert scroll wheel holder holder into electronics assembly
 ![](https://lh3.googleusercontent.com/K1nEg4-zlETXQJl3XeLmhWejLooyTwN6H4deeKIIJ-sHGA1aHTg-VlWFD76scMQJe7UNsdD6oVZA2fTxEPJTilb6AI8RlCQDqCOUbqp_wdS0v4u0JqHxYWWBHNi8GZx2CeZGKjNevDXshgWmpOObyUieZkkZOOXLZKX82e4tY4K8hdxAnHx8HnhFtR3B1kvj4uOpvZmksd0HLcrgtL_URhVkfcQMK_zYW4cA3xqg5u1q-uYSKR-Y8Fr-h6ecKYlEmOsLcA-ggE2VfB7O5OWk8jGL1IcgJC4gIqhnl1TtpSKzMhP_VpY8hG9q9b9Rb9OFkj6wxPY8vQFh6ZqbXkfVWfahAJkIZ6VNHmtu9GaDF5QzpVzWwBZduRjGRCmeHmFFoQpoLtQo-UZedX1F35mBLXTEDHU_mnMthCSgptpAxqqTogpnauYM4sAdib32Bg6o92_LYOJVr3zZIZ5J0pjkyFXFsFggPqE2FHk0TzhTaGrUOvIZKFZ_WnKA8aWmerP0L3zKE0LjmLoaa8TKlgyR8FqJOyA0ctbY5or3YAxJrMkVVd3fJUziDGheJtiTALbwKpV4XqY2vHngLlH7N54kM02oRNQdp2p6APlOUfWKXtPnC0EDP4GKQY1a0TOtznJErXhyC-qW73hQxPDFcmsnIcawZ2-h7ztlw4hPSbwj3g-JXRs9lu8XXxT7ka8nx_OumqYb1tblipOkBwBI0TprlnZfUD54KmB8FKCHzsgsyCQYE0I=w1454-h969-no)