Using Weight Defines

code/game/objects/items/weapons/implants/implant_storage.dm

@@ -1,9 +1,9 @@
 /obj/item/weapon/storage/hidden/implant
 	name = "bluespace pocket"
 	storage_slots = 2
-	max_w_class = 3
-	max_combined_w_class = 6
-	w_class = 4
+	max_w_class = WEIGHT_CLASS_NORMAL
+	max_combined_w_class = WEIGHT_CLASS_GIGANTIC
+	w_class = WEIGHT_CLASS_BULKY
 	cant_hold = list(/obj/item/weapon/disk/nuclear)
 	silent = 1
 
@@ -58,4 +58,4 @@
 
 /obj/item/weapon/implanter/storage/New()
 	imp = new /obj/item/weapon/implant/storage(src)
-	..()
+	..()

code/game/objects/items/weapons/implants/implantcase.dm

@@ -6,7 +6,7 @@
 	item_state = "implantcase"
 	throw_speed = 2
 	throw_range = 5
-	w_class = 1
+	w_class = WEIGHT_CLASS_TINY
 	origin_tech = "materials=1;biotech=2"
 	materials = list(MAT_GLASS=500)
 	var/obj/item/weapon/implant/imp = null
@@ -98,4 +98,4 @@
 
 /obj/item/weapon/implantcase/death_alarm/New()
 	imp = new /obj/item/weapon/implant/death_alarm(src)
-	..()
+	..()

code/game/objects/items/weapons/implants/implanter.dm

@@ -6,7 +6,7 @@
 	item_state = "syringe_0"
 	throw_speed = 3
 	throw_range = 5
-	w_class = 2
+	w_class = WEIGHT_CLASS_SMALL
 	origin_tech = "materials=1;biotech=3;programming=2"
 	materials = list(MAT_METAL=600, MAT_GLASS=200)
 	toolspeed = 1
@@ -86,4 +86,4 @@
 
 /obj/item/weapon/implanter/death_alarm/New()
 	imp = new /obj/item/weapon/implant/death_alarm(src)
-	..()
+	..()

code/game/objects/items/weapons/implants/implantpad.dm

@@ -8,7 +8,7 @@
 	item_state = "electronic"
 	throw_speed = 3
 	throw_range = 5
-	w_class = 2
+	w_class = WEIGHT_CLASS_SMALL
 	var/obj/item/weapon/implantcase/case = null
 
 /obj/item/weapon/implantpad/Destroy()