https://batuhangg.com.tr/en/how-to-become-tiny-in-minecraft-1-21-no-mods/

Minecraft Tiny Boots (1.21.3+)

Copy!

/give @a golden_boots[custom_name='["",{"text":"Tiny\'s Golden Boots 🧪","italic":false,"color":"green","bold":true}]',lore=['["",{"text":"You","italic":false,"color":"white"},{"text":"Tube","italic":false,"color":"#ff0000"},
{"text":":","italic":false,"color":"light_purple"},
{"text":" ","italic":false},{"text":"BatuhanGG","italic":false,"color":"gold"}]'],minecraft:enchantments={levels:{'minecraft:unbreaking':255},show_in_tooltip:false},attribute_modifiers={modifiers:[{type:"movement_speed",amount:-0.3,slot:feet,id:"movement_speed",operation:add_multiplied_base},{type:"scale",amount:-0.9,slot:feet,id:"scale",operation:add_multiplied_base},{type:"jump_strength",amount:-0.5,slot:feet,id:"jump_strength",operation:add_multiplied_base},{type:"attack_knockback",amount:-0.4,slot:feet,id:"attack_knockback",operation:add_multiplied_base},{type:"entity_interaction_range",amount:-0.4,slot:feet,id:"entity_interaction_range",operation:add_multiplied_base},{type:"block_interaction_range",amount:-0.3,slot:feet,id:"block_interaction_range",operation:add_multiplied_base},{type:"attack_damage",amount:-0.5,slot:feet,id:"attack_damage",operation:add_multiplied_base},{type:"step_height",amount:-1,slot:feet,id:"step_height",operation:add_multiplied_base},{type:"gravity",amount:-0.5,slot:feet,id:"gravity",operation:add_multiplied_base},{type:"max_health",amount:-0.3,slot:feet,id:"max_health",operation:add_multiplied_base},{type:"armor",amount:-1,slot:feet,id:"armor",operation:add_value},{type:"safe_fall_distance",amount:-0.5,slot:feet,id:"safe_fall_distance",operation:add_multiplied_base},{type:"sweeping_damage_ratio",amount:-1,slot:feet,id:"sweeping_damage_ratio",operation:add_multiplied_base}],show_in_tooltip:false}]